#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void nulltest(char * t, char * s) {
  printf("%s %s\n", t, s);
  char * amp = "&";
  if (strcmp(t,amp) == 0)// && s == NULL) 
    printf("yes\n"); 
  else 
    printf("no\n");
}

int main() {
  char * test = "&";
  char * s = NULL;
  nulltest(test, s);
  return 0;
}
